Didactic toy for mathematics



FIG. 1 is a front perspective view of a didactic toy for mathematicsshowing my design.

FIG. 2 is an exploded perspective view thereof;

FIG. 3 is a front perspective view of the board element;

FIG. 4 is a front view thereof;

FIG. 5 is a side view with the opposite side being a mirror imagethereof;

FIG. 6 is a back view thereof;

FIG. 7 is a slightly enlarged side view of the base element with theopposite side being a mirror image thereof;

FIG. 8 is a slightly enlarged end view with the opposite side being amirror image thereof;

FIG. 9 is a slightly enlarged top view thereof;

FIG. 10 is an enlarged perspective view of a tile piece with the number“9” shown in broken lines forming no part of the claimed design;

FIG. 11 is an enlarged side view with the opposite side being a mirrorimage thereof;

FIG. 12 is an enlarged front view thereof;

FIG. 13 is an enlarged perspective view of a mounting tool;

FIG. 14 is an enlarged front view thereof;

FIG. 15 is an enlarged side view thereof;

FIG. 16 is an enlarged top plan view thereof;

FIG. 17 is an enlarged exploded perspective view of a spinning dialpiece element;

FIG. 18 is a greatly enlarged partial broken away persective view of theboard, showing the application of the tile piece with the mounting tool.The like tile piece and the number “9” and the Letter “A” are shown inbroken lines forming no part of the claimed design;

FIG. 19 is another enlarged perspective view of a didactic toy formathematics with all numerals and markings shown in broken lines formingno part of the claimed design; and,

FIG. 20 is another enlarged perspective view of a didactic toy formathematics with all letters and markings shown in broken lines formingno part of the claimed design.

I claim the ornamental design for a didactic toy for mathematics, asshown and described.